Living organisms are well organised to structure, they can have tissues, tissues also have cells, cells have smaller components in them. Leaving organisms skip repairing and maintaining their structures by self. All these structures are made up of molecules and ...

Remember when air passes through the nasal cavity and take it as respiration. But that air is filtered by the nostrils, and moistened by mucus, before air is going into the lungs. And gets warmer equal to the temperature of ...

We must know that – During the preparation of hydrogen chloride gas on a humid day, the role of calcium chloride (CaCl₂) taken in the guard tube is to absorb moisture from gas. This is because CaCl₂ is used gas ...